1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alekssandra [29.7K]
2 years ago
12

A test tube containing known antibody and unknown cells has been incubated and spun. After dislodging the cell button completely

, several large agglutinates are apparent with no small clumps or free cells visible. The background solution is clear. This reaction should be graded as:_______.
A. 4+
B. 3+
C. 2+
D. 1+
Biology
1 answer:
ivann1987 [24]2 years ago
6 0
Umm I think is C. 2+
You might be interested in
Which commodity is used most heavily in industrial economies steel plastic or wood
stira [4]
Wood should be correct
4 0
3 years ago
Read 2 more answers
Zones in lakes and oceans are delineated by depth, distance from shore, or light penetration. Different zones have different phy
Sophie [7]

Answer:

a.) freshwater plants may be rooted here--- Shore

b.) littoral zone--- it is the region of a lake or pond that is nearest to the shore

c.) limnetic zone--- A region of open water in lakes and ponds.

d.) alternately dry and submerged--- Intertidal Zone

e.) extends to edge of the continental shelf--- Neretic Zone

f.) generally low nutrient levels

g.) light penetrates here--- Photic Zone

h.) no photosynthesis occurs here--- Aphotic Zone

i.) benthic zone--- this is purely known as the bottom of the lakes or oceans

6 0
2 years ago
Which animal adaptation would be best for this habitat?
Kruka [31]

Answer:

B an animal that can live in fresh water

6 0
3 years ago
Read 2 more answers
HELP ASAP
Gnom [1K]

Answer:

less than 1%

Explanation:

The approximate percentage of the geologic time that humans have existed on the Earth since its origin is less than 1%.

The earth is about 4.6 billion years and much of its history has been without the present of human activities.

  • Hominis were the first human to appear on the surface of the earth.
  • This was in the Miocene epoch which was about 6 million years ago.
  • Compared to the age of the earth, this time lapse is very small and not up to 1%.
  • Life first appeared on earth about 3.5billion years.
  • Since then evolution has taken its due course to give what we have today.
6 0
3 years ago
True-bred or pure-bred is the same as saying something is homozygous<br><br> True<br> False
Mazyrski [523]
TRUE. A true-breeding organism, sometimes also called a purebred, is an organism that always passes down certain phenotypic traits to its offspring.
3 0
3 years ago
Other questions:
  • Body part that serves no purpose
    15·1 answer
  • A catabolic pathway may be which of the following? a set of reactions that release energy that can be used to drive cellular wor
    14·1 answer
  • Juanita sticks a nail to the end of a bar magnet. She then sticks a second nail to the first, then another to that one, and so o
    10·2 answers
  • What is the “reserve” of a fossil fuel?
    6·2 answers
  • "the competitive exclusion principle only applies when species differ in their competitive abilities"
    13·1 answer
  • What are some effective ways to clean-up polluted water? Support your answer
    9·1 answer
  • Which of the following statements presents a reasonable conclusion?
    5·2 answers
  • Someone please help me
    11·1 answer
  • Occurs in mitochondria.
    7·1 answer
  • A scientist constructs a graph to show the age structure that f the human population of county
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!